61 lines
1.9 KiB
Haskell
61 lines
1.9 KiB
Haskell
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module Polybar (polybarLogHook, mkDbusClient) where
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import XMonad.Hooks.DynamicLog
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import Text.Printf (printf)
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import XMonad.Layout.IndependentScreens (marshallPP)
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import qualified DBus as D
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import qualified DBus.Client as D
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import qualified Codec.Binary.UTF8.String as UTF8
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mkDbusClient :: IO D.Client
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mkDbusClient = do
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dbus <- D.connectSession
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D.requestName dbus (D.busName_ "org.xmonad.log") opts
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return dbus
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where
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opts = [D.nameAllowReplacement, D.nameReplaceExisting, D.nameDoNotQueue]
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monitorMsg :: Int -> String -> String
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monitorMsg = printf "{\"%d\": \"%s\"}"
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-- Emit a DBus signal on log updates
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dbusOutput :: D.Client -> String -> IO ()
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dbusOutput dbus str =
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let opath = D.objectPath_ "/org/xmonad/Log"
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iname = D.interfaceName_ "org.xmonad.Log"
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mname = D.memberName_ "Update"
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signal = D.signal opath iname mname
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body = [D.toVariant $ UTF8.decodeString $ monitorMsg 0 str]
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in D.emit dbus $ signal { D.signalBody = body }
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polybarFmt :: String -> String -> String -> String
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polybarFmt var color elem = "%{" ++ var ++ color ++ "}" ++ elem ++ "%{" ++ var ++ "-}"
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polybarFg :: String -> String -> String
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polybarFg = polybarFmt "F"
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polybarBg :: String -> String -> String
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polybarBg = polybarFmt "B"
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polybarBgFg :: String -> String -> String -> String
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polybarBgFg bg fg = polybarBg bg . polybarFg fg
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polybarHook :: D.Client -> PP
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polybarHook dbus = def
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{ ppOutput = dbusOutput dbus
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, ppCurrent = polybarBgFg "#458588" "#fbf1c7"
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, ppVisible = polybarFg "#ebdbb2"
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, ppUrgent = polybarBgFg "#cc241d" "#fbf1c7"
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, ppHidden = polybarFg "#ebdbb2"
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, ppLayout = const ""
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, ppHiddenNoWindows = const ""
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, ppTitle = shorten 100 . polybarFg "#fbf1c7"
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, ppSep = polybarFg "#a89974" " | "
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}
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polybarLogHook dbus = dynamicLogWithPP $ (marshallPP 0 . polybarHook) dbus
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